Polyglutamic acid(PGA)
- Reactivity
- Polyglutamic acid(PGA)
- Range
- 25513-46-6
- Sensitivity
- White powder, water soluble
- Cas
- Due to its unique molecule structure, PGA can absorb and retain skin moisture efficiently and form a silky film on the surface of skin. It can effectively prevent the skin from long-time drying condition, especially in air-conditioned rooms or in cold dry winte. PGA enhances skin smoothness, reduces wrinkles and improves elasticity of skin. Moisture effect is better than sodium hyaluronate and collagen,can moisten skin for a long time,enhance skin elasticity and reduce wrinkles. Generally applied to cosmetics with wrinkle-removal, sun protection and moisturizing effect.
Product Parameter
Catalogue NO | MHW-WFK-C202309004; |
CAS No. | 25513-46-6 |
Product Name | Polyglutamic acid; PGA |
Chemical Structure |
|
Appearance | White to off-white powder |
Molecular weight | 70-100Kda;700-1000Kda |
Solubility | Water soluble |
Application | Toner, moisture lotion,Serums,mask,facial cleanser |
Package | 1kg net per bag/ 10kgs net per carton |
Shelf life | 2 years |
Storage | Keep container tightly closed and in a cool place. Keep away from heat. |
Dosage | 1‰-1% |
Application
First recognized in Japanese food “Natto”, gamma-polyglutamic acid is a natural multifunctional biopolymer produced with Bacillus Subtilis by fermentation. PGA is a water soluble homo-polyamide. It consists of D-and L-glutamic acid monomers which are connected by amide linkages between α－amino and y-carboxyl groups. Freda has two series of cosmetics grade PGA products – the high molecule H- PGA (700-1000 k Da) and the low molecule L- PGA (70-100 k Da).
Large number of carboxyl groups along the molecule chain of PGA can form hydrogen bonding in a molecule or between different molecules. Thus it has high water absorbability and moisture-retaining capability. Thanks to its unique properties, PGA can be used as thickener, filmogen, humcctant, retarder, cosolvent, binder and anti-freezer, therefore the application prospect of PGA is promising.
With strong moisturizing ability, the side chain of PGA can enhance the moisturizing capability of skin without breaking moisture balance of skin. When integrated into skin-care products, PGA can trengthen the moisturizing ability of skin and prevent skin from drying.
PGA can maintain and increase the content of HA. PGA inhibits the activity of hyaluronidase effectively and improves the stability of HA. L-PGA especially has better effect on inhibiting of hyaluronidase in skin. The content of HA in the skin increases remarkable along with the adding of L-PGA. PGA and HA synergy improves the moisture, elasticity and appearance of skin.